Azure Kubernetes Service (AKS)

Step 1: Prerequisites

Before you begin, ensure you have the following:

• An Azure subscription. If you don't have one, you can create a free account.
• The Azure CLI installed and configured. You can find installation instructions here.
• kubectl, the Kubernetes command-line tool, installed.

Log in to your Azure account:

az login

Set your active subscription:

az account set --subscription ""

Step 2: Create an AKS Cluster

Use the Azure CLI to create a new AKS cluster. This command will create a resource group and an AKS cluster named myAKSCluster.

az aks create --resource-group myResourceGroup --name myAKSCluster --node-count 1 --enable-addons monitoring --generate-ssh-keys

This process may take several minutes to complete.

Step 3: Connect kubectl to Your Cluster

Once the cluster is created, configure kubectl to connect to it:

az aks get-credentials --resource-group myResourceGroup --name myAKSCluster

Verify the connection:

kubectl get nodes

You should see your cluster's nodes listed.

Step 3: Deploy a Sample Application

We'll deploy a simple Nginx application. Create a YAML file named azure-aks-quickstart.yaml with the following content:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80

Apply this deployment to your cluster:

kubectl apply -f azure-aks-quickstart.yaml

Step 4: Expose Your Application

To make your application accessible from the internet, create a Kubernetes Service of type LoadBalancer. Create a file named azure-aks-quickstart-service.yaml:

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  selector:
    app: nginx
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: LoadBalancer

Apply the service configuration:

kubectl apply -f azure-aks-quickstart-service.yaml

Get the external IP address of your service:

kubectl get service nginx-service

It might take a minute or two for the external IP address to be assigned. Once it is, you can access your Nginx application by navigating to that IP address in your web browser.